Texas Instruments

LM4140ACMX-2.5

LM4140ACMX-2.5 Description

The LM4140ACMX-2.5 is a precision voltage reference IC designed by Texas Instruments, offering a fixed output voltage of 2.5V with a tight tolerance of ±0.1%. This device is ideal for applications requiring high accuracy and stability in voltage references. The LM4140ACMX-2.5 operates within an input voltage range of 1.8V to 5.5V, making it suitable for a variety of power supply environments. It features a low supply current of 375µA, which is beneficial for low-power applications. The temperature coefficient of 3ppm/°C ensures minimal drift over the operating temperature range of 0°C to 70°C (TA), maintaining accuracy across different environmental conditions.

LM4140ACMX-2.5 Features

• Fixed Output Voltage: The LM4140ACMX-2.5 provides a stable 2.5V output, making it suitable for applications requiring a precise reference voltage.
• High Accuracy: With a tolerance of ±0.1%, the LM4140ACMX-2.5 ensures high accuracy in voltage references, crucial for precision measurement and control systems.
• Low Supply Current: The device consumes only 375µA, making it ideal for low-power applications where energy efficiency is paramount.
• Wide Operating Temperature Range: The LM4140ACMX-2.5 operates reliably within a temperature range of 0°C to 70°C (TA), ensuring consistent performance in various environments.
• Low Temperature Coefficient: The 3ppm/°C temperature coefficient minimizes voltage drift, maintaining accuracy across the operating temperature range.
• Surface Mount Packaging: The surface mount package (Tape & Reel) facilitates easy integration into compact and high-density PCB designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited) ensures the device is suitable for a wide range of manufacturing processes without additional moisture protection.

LM4140ACMX-2.5 Applications

The LM4140ACMX-2.5 is well-suited for a variety of applications that require high-precision voltage references. Some specific use cases include:

• Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate analog signal conversion.
• Digital-to-Analog Converters (DACs): Ensures precise output voltage levels for reliable digital signal processing.
• Power Management Systems: Offers a stable reference for voltage regulation and monitoring.
• Medical Devices: Ensures accurate measurements in medical instruments where precision is critical.
• Industrial Control Systems: Provides a reliable reference voltage for control systems requiring high accuracy and stability.

Conclusion of LM4140ACMX-2.5

The LM4140ACMX-2.5 from Texas Instruments is a high-precision voltage reference IC that offers exceptional accuracy and stability. Its low supply current and wide operating temperature range make it suitable for a variety of applications, particularly those requiring high precision and reliability. Despite being marked as obsolete, the LM4140ACMX-2.5 remains a valuable component for designers and engineers seeking a dependable voltage reference solution.